Immobilizer System
- Specifications
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- DTC B0996: Vehicle Electronic Control Unit (ECU) VIN Check Error
- DTC B2955: Security Sensor Data Circuit
- DTC B302A: Telematic Requested Immobilization
- DTC B3031: Security Controller In Learn Mode
- DTC B3055: No Transponder Modulation or No Transponder
- DTC B305C: Immobilizer Transponder of Wrong Type Programmed
- DTC B3060: Unprogrammed Transponder Identification Code Received
- DTC B389A: Environment Identification
- DTC B3902: Incorrect Immobilizer Identifier Received
- DTC B3924-B3928: Incorrect Environmental Identifier
- DTC B3935: Transponder Authentication
- DTC B3976: Unconfigured Transponder
- DTC B3978-B3982: Incorrect Environmental Identifier
- DTC B3984: Device 1 Environment Identifier Not Programmable
- DTC P0513: Theft Deterrent Key Incorrect
- DTC P0633: Theft Deterrent Key Not Programmed
- DTC P1629: Theft Deterrent Fuel Enable Signal Not Received
- DTC P162B: Remote Vehicle Speed Limiting Signal Message Counter Incorrect
- DTC P1631: Remote Vehicle Speed Limiting Signal Message Counter Incorrect
- DTC P1649: Immobilizer Security Code Not Programmed
- Symptoms - Immobilizer
- OnStar Stolen Vehicle Slowdown Active
- Repair Instructions
- Description and Operation